"Twin", as a noun, is singular; so, "twin is" is correct. "Twins" or "twin & _____" would be plural, in which case "are" would be correct.
You would say "孖仔" (maai5 zai2) in Cantonese to refer to twin boys.
Jumeaux. If they were twin girls the word would become jumelles.
Tagalog translation of I LOVE YOU MY TWIN: Mahal kita aking kakambal.
je suis un jumeau (masc.) / une jumelle (fem.)
Avec ma sœur jumelle
my twin sisters is mes soeurs jumelles
You would say "孖仔" (maai5 zai2) in Cantonese to refer to twin boys.
caapueyano
You say, "gemelos."
Jumeaux. If they were twin girls the word would become jumelles.
gemela
Possibly Futago no Tamashii Futago - (a) twin Tamashii - Soul
twin girl = teh-oo-máh (תאומה)
Tagalog translation of I LOVE YOU MY TWIN: Mahal kita aking kakambal.
people say there was
doble veinte
tengo un gemelo